Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (7): 69-71.DOI: 10.3778/j.issn.1002-8331.2010.07.021

• 研发、设计、测试 • Previous Articles     Next Articles

Design and optimization techniques for instruction control pipeline of YHFT-DX high performance DSP

GUO Yang,ZHEN Ti-zhi,LI Yong   

  1. School of Computer Science and Technology,National University of Defense Technology,Changsha 410073,China
  • Received:2009-06-26 Revised:2009-08-11 Online:2010-03-01 Published:2010-03-01
  • Contact: GUO Yang

YHFT-DX高性能DSP指令控制流水线设计与优化

郭 阳,甄体智,李 勇   

  1. 国防科技大学 计算机学院微电子所,长沙 410073
  • 通讯作者: 郭 阳

Abstract: YHFT-DX developed by NUDT is a high performance fix-point DSP processor.This paper designs the instruction control pipeline of YHFT-DX,and presents the non-align dispatch and instruction pre-fetch mechanism to achieve high pipeline performance of the VLIW YHFT-DX.At the same time,the structure of the instruction pipeline is optimized for high performance.The critical path of instruction dispatch unit is reduced by 40%,which meets the 600 MHz design objective of the chip.

Key words: Digital Signal Processor(DSP), Very Long Instruction Word(VLIW), pipeline, nonalign dispatch, instruction pre-fetch

摘要: YHFT-DX是国防科技大学设计的一款高性能定点DSP。论文设计并实现了YHFT-DX指令控制流水线,提出了在YHFT-DX 超长指令字结构中跨取指包边界派发和指令预取的方法,有效提升了流水线的性能。对指令流水线进行了高频结构优化,将派发部件的关键路径延时压缩40%,满足了600 MHz频率的设计目标。

关键词: 数字信号处理器, 超长指令字, 流水线, 跨边界派发, 指令预取

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